---
title: "BLACK DIAMOND (HOLDINGS) LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/0029aecb-c41f-5dec-b69a-9c2eb85142e3
json: https://whiteintel.dev/api/public/dossier/0029aecb-c41f-5dec-b69a-9c2eb85142e3
identifier: oo:GB-COH-06340507
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# BLACK DIAMOND (HOLDINGS) LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-06340507`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/0029aecb-c41f-5dec-b69a-9c2eb85142e3  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/0029aecb-c41f-5dec-b69a-9c2eb85142e3  

## Ownership & control

### Owners / controllers

- **Mr Sean Pierre Hornsby** (beneficial owner) — 50% — https://whiteintel.dev/entity/a24a8851-0f0d-5c28-8e9d-93a7cf43defb
- **Mrs Jane Jacqueline Hornsby** (beneficial owner) — 50% — https://whiteintel.dev/entity/31311f19-38cd-588d-b0a9-e33505887a61
- **Mr Sean Pierre Hornsby** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/380879d9-c5b0-4a41-9a76-8077b8a3b150
- **Mrs Jane Jacqueline Hornsby** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/5d0d3fa0-a089-40f5-96c2-2ce460134c32

### Holdings / subsidiaries

- **MAD DOG COMMUNICATIONS LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/a94c4b99-2ffd-5049-927e-6c5cee51af66
- **INVISIBLE TOUCH TANNING AND BEAUTY LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/07a5ba72-99d9-5808-9cb3-f2a991c7e4d7
- **GEMINI BOOKKEEPING SERVICES LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/a972a848-263e-5ade-b2dc-770dcc9ddbc1
- **MAD DOG COMMUNICATIONS LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/a94c4b99-2ffd-5049-927e-6c5cee51af66
- **GEMINI BOOKKEEPING SERVICES LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/a972a848-263e-5ade-b2dc-770dcc9ddbc1

### UBO chain (walk to the ultimate owner)

1. **Mr Sean Pierre Hornsby** — beneficial owner 50% → *BLACK DIAMOND (HOLDINGS) LTD*
1. **Mrs Jane Jacqueline Hornsby** — beneficial owner 50% → *BLACK DIAMOND (HOLDINGS) LTD*
1. **Mr Sean Pierre Hornsby** — beneficial owner 37.5% → *BLACK DIAMOND (HOLDINGS) LTD*
1. **Mrs Jane Jacqueline Hornsby** — beneficial owner 37.5% → *BLACK DIAMOND (HOLDINGS) LTD*

## Company profile (live · UK Companies House)

- **Company number:** `06340507`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2007-08-13
- **Registered office:** 11 High Street, Ruddington, Nottingham, NG11 6DT, England
- **SIC:** 70100

## Financials (Companies House accounts)

| Figure | 2025-08-31 | 2024-08-31 |
|---|---:|---:|
| Net assets | £101,115 | £150,652 |
| Shareholder funds | £101,115 | £150,652 |
| Fixed assets | £94,069 | £94,069 |
| Current assets | £142,080 | £256,714 |
| Employees | 2 | 2 |

_As filed at Companies House. Micro-entities file no profit-and-loss account._

### Officers

- HORNSBY, Jane Jacqueline — secretary · British · appointed 2007-08-13
- HORNSBY, Jane Jacqueline — director · British · appointed 2011-04-13
- HORNSBY, Sean Pierre — director · British · appointed 2007-08-13
- CREDITREFORM (SECRETARIES) LIMITED — corporate secretary · appointed 2007-08-13 · resigned 2007-08-13
- CREDITREFORM (DIRECTORS) LIMITED — corporate director · appointed 2007-08-13 · resigned 2007-08-13

### Beneficial owners (Persons with Significant Control)

- Mr Sean Pierre Hornsby — 25–50% shares · individual PSC · England — since 2016-04-06
- Mrs Jane Jacqueline Hornsby — 25–50% shares · individual PSC · England — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/06340507
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/06340507
- companies_house_accounts — https://find-and-update.company-information.service.gov.uk/company/06340507/filing-history

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **BLACK DIAMOND (HOLDINGS) LTD**. Human view: https://whiteintel.dev/entity/0029aecb-c41f-5dec-b69a-9c2eb85142e3 · Structured JSON: https://whiteintel.dev/api/public/dossier/0029aecb-c41f-5dec-b69a-9c2eb85142e3._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._